Question

我正在迁移数据库。我将源和目标表列表以及行计数存储在字典中。我需要比较两个字典，以查明表和数据是否已成功迁移

代码在下面被剪掉

sourceRowData = {'table1': 5, 'table2': 10, 'table3': 20, 'table4': 50}
targetRowData = {'table1': 5, 'table2': 10, 'table3': 8}
results = {}

# Compare keys
if set(sourceRowData.keys()) == set(targetRowData.keys()):
    for key in sourceRowData.keys():
        # Compare Values
        if sourceRowData[key] != targetRowData[key]:
           print ("Row count for table {} do not match".format(key))
           results["Table Row Count"] = "Failed"
        else:
           results["Table Row Count"] = "Pass"
else:
   results["Table Row Count"] = "Failed"
   # Display which table is missing based on the missing key
   for key, value in sourceRowData.items():
       if not key in targetRowData.keys():
          print ("Table {} not found in target database {}".format(key, targetDatabase))

我想同时比较键值和相应值。如果值（行数）不匹配，那么我想显示哪个表和行数不匹配。

我的代码为每个丢失的表打印消息，相反，我想显示行计数不匹配一次，然后将计数不匹配的每个表打印到控制台。和比较键时一样

包含验证报告的我的结果字典会针对每条效率不高的记录不断更新。

Answer 1

这是一种方法。

例如：

sourceRowData = {'table1': 5, 'table2': 10, 'table3': 20, 'table4': 50}
targetRowData = {'table1': 5, 'table2': 10, 'table3': 8}


for key, v in sourceRowData.items():
    if key not in targetRowData:   #Check if table in targetRowData
        print ("Table {} not found in target database {}".format(key, "targetDatabase"))
    else:
        if v != targetRowData[key]:  #Check for count mismatch
            print("Failed: Table Row Count mismatch {}".format(key))

输出：

Failed: Table Row Count mismatch table3
Table table4 not found in target database targetDatabase

比较两个字典是否相同，并且打印不匹配的键和值

1 个答案: